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<p class="subTitle">org.apache.poi.ss.util</p>
<h2 title="Class ImageUtils" class="title">Class ImageUtils</h2>
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<li>java.lang.Object</li>
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<pre>public class <strong>ImageUtils</strong>
extends java.lang.Object</pre>
<dl><dt><span class="strong">Author:</span></dt>
  <dd>Yegor Kozlov</dd></dl>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/poi/ss/util/ImageUtils.html#PIXEL_DPI">PIXEL_DPI</a></strong></code>&nbsp;</td>
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<td class="colOne"><code><strong><a href="../../../../../org/apache/poi/ss/util/ImageUtils.html#ImageUtils()">ImageUtils</a></strong>()</code>&nbsp;</td>
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<td class="colFirst"><code>static java.awt.Dimension</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/poi/ss/util/ImageUtils.html#getDimensionFromAnchor(org.apache.poi.ss.usermodel.Picture)">getDimensionFromAnchor</a></strong>(<a href="../../../../../org/apache/poi/ss/usermodel/Picture.html" title="interface in org.apache.poi.ss.usermodel">Picture</a>&nbsp;picture)</code>
<div class="block">Calculates the dimensions in EMUs for the anchor of the given picture</div>
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<td class="colFirst"><code>static java.awt.Dimension</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/poi/ss/util/ImageUtils.html#getImageDimension(java.io.InputStream, int)">getImageDimension</a></strong>(java.io.InputStream&nbsp;is,
                 int&nbsp;type)</code>
<div class="block">Return the dimension of this image</div>
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<td class="colFirst"><code>static int[]</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/poi/ss/util/ImageUtils.html#getResolution(javax.imageio.ImageReader)">getResolution</a></strong>(javax.imageio.ImageReader&nbsp;r)</code>
<div class="block">The metadata of PNG and JPEG can contain the width of a pixel in millimeters.</div>
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<td class="colFirst"><code>static java.awt.Dimension</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/poi/ss/util/ImageUtils.html#setPreferredSize(org.apache.poi.ss.usermodel.Picture, double, double)">setPreferredSize</a></strong>(<a href="../../../../../org/apache/poi/ss/usermodel/Picture.html" title="interface in org.apache.poi.ss.usermodel">Picture</a>&nbsp;picture,
                double&nbsp;scaleX,
                double&nbsp;scaleY)</code>
<div class="block">Calculate and set the preferred size (anchor) for this picture.</div>
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<h4>PIXEL_DPI</h4>
<pre>public static final&nbsp;int PIXEL_DPI</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../constant-values.html#org.apache.poi.ss.util.ImageUtils.PIXEL_DPI">Constant Field Values</a></dd></dl>
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<pre>public&nbsp;ImageUtils()</pre>
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<h4>getImageDimension</h4>
<pre>public static&nbsp;java.awt.Dimension&nbsp;getImageDimension(java.io.InputStream&nbsp;is,
                                   int&nbsp;type)</pre>
<div class="block">Return the dimension of this image</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>is</code> - the stream containing the image data</dd><dd><code>type</code> - type of the picture: <a href="../../../../../org/apache/poi/ss/usermodel/Workbook.html#PICTURE_TYPE_JPEG"><code>Workbook.PICTURE_TYPE_JPEG</code></a>,
 <a href="../../../../../org/apache/poi/ss/usermodel/Workbook.html#PICTURE_TYPE_PNG"><code>Workbook.PICTURE_TYPE_PNG</code></a> or <a href="../../../../../org/apache/poi/ss/usermodel/Workbook.html#PICTURE_TYPE_DIB"><code>Workbook.PICTURE_TYPE_DIB</code></a></dd>
<dt><span class="strong">Returns:</span></dt><dd>image dimension in pixels</dd></dl>
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<h4>getResolution</h4>
<pre>public static&nbsp;int[]&nbsp;getResolution(javax.imageio.ImageReader&nbsp;r)
                           throws java.io.IOException</pre>
<div class="block">The metadata of PNG and JPEG can contain the width of a pixel in millimeters.
 Return the the "effective" dpi calculated as <code>25.4/HorizontalPixelSize</code>
 and <code>25.4/VerticalPixelSize</code>.  Where 25.4 is the number of mm in inch.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>array of two elements: <code>{horisontalPdi, verticalDpi}</code>.
 {96, 96} is the default.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<h4>setPreferredSize</h4>
<pre>public static&nbsp;java.awt.Dimension&nbsp;setPreferredSize(<a href="../../../../../org/apache/poi/ss/usermodel/Picture.html" title="interface in org.apache.poi.ss.usermodel">Picture</a>&nbsp;picture,
                                  double&nbsp;scaleX,
                                  double&nbsp;scaleY)</pre>
<div class="block">Calculate and set the preferred size (anchor) for this picture.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>scaleX</code> - the amount by which image width is multiplied relative to the original width.</dd><dd><code>scaleY</code> - the amount by which image height is multiplied relative to the original height.</dd>
<dt><span class="strong">Returns:</span></dt><dd>the new Dimensions of the scaled picture in EMUs</dd></dl>
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<h4>getDimensionFromAnchor</h4>
<pre>public static&nbsp;java.awt.Dimension&nbsp;getDimensionFromAnchor(<a href="../../../../../org/apache/poi/ss/usermodel/Picture.html" title="interface in org.apache.poi.ss.usermodel">Picture</a>&nbsp;picture)</pre>
<div class="block">Calculates the dimensions in EMUs for the anchor of the given picture</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>picture</code> - the picture containing the anchor</dd>
<dt><span class="strong">Returns:</span></dt><dd>the dimensions in EMUs</dd></dl>
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